2026 Compare Cities Climate:
Downers Grove, IL vs Collinsville, IL

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Highlights
- Collinsville has 10.9% more rainy days than Downers Grove.
- Collinsville has 3.6% more Sunny Days than Downers Grove.
- On the BestPlaces comfort index, Collinsville scores 4.3% better than Downers Grove
 Downers Grove, ILCollinsville, ILUnited States
 Rainfall  Unlock4338
 Snowfall30  Unlock28
 Precipitation  Unlock102106
 Sunny192  Unlock205
 Avg. July High  Unlock8986
 Avg. Jan. Low15  Unlock22
 Comfort Index (higher=better)  Unlock7.27
 UV Index3.4  Unlock4.3
 Elevation  Unlock5612443
Reviews for Downers Grove    5 Reviews

Hi I have been living in Downers Grove since 1988. I used to work in Bank and couple other had been served couple other firms in managerial level. I found the best Tax  More

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Over 14 years ago

Quiet fmily neighborhoods with good  More

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Over 19 years ago

One of the safest places to live in the  More

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Reviews for Collinsville    2 Reviews

St. Louis MO metro area - Illinois area. Blistering summer weather, way below freezing winters. Almost no spring or fall. Otherwise, not a bad  More

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Over 20 years ago

Collinsville's winters rarely get a heavy snowfall. A few inches is the norm. The summers are hot and very muggy. Fall and Spring are the best times to be in  More

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